US Patent: 732,858


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US Patent: 732,858

Wrench

Patentee:

David H. Irland - Chicago, IL

USPTO Classifications:

81/111, 81/177.2, 81/374, 81/99

Tool Categories:

wrenches : pipe wrenches

wrenches : wrench adjustment types : self-adjust wrenches

Assignees:

None

Manufacturer:

Unknown

Witnesses:

Patent Dates:
Applied:	Dec. 09, 1902
Granted:	Jul. 07, 1903

Patent Pictures:

David H. Irland Pat. July 7, 1903

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Description:

This is the first of three patents resulting in the Irland Pipe Wrench; each patent simplified the internal arrangement of the linkage between the auxiliary lever and the jaw. The others are 739,316 and 800,850.